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The Currencies That Actually Matter When You Travel

The Currencies That Actually Matter When You Travel

After 64 countries, I've learned which currencies matter and which don't. Here's the honest hierarchy.

Travel writers love to make currencies seem mysterious. Tables of exchange rates. Tips on getting "the best rate." Detailed currency converter app reviews.

Most of this is overthought. In practice, for most travelers, currency is mostly a non-issue if you understand a few principles.

The currencies that matter

For 90% of travelers, three currencies actually matter:

USD. The fallback global currency. Accepted in many countries directly. Carried as backup almost everywhere.

EUR. The default European currency. Used across 20 countries. Stable. Widely accepted in non-EUR European countries too.

The local currency of where you're going. Whatever that is.

That's it. You don't need to think about most other currencies.

The countries where USD is gold

In some countries, US dollars are actually preferred over local currency for many transactions:

  • Egypt (tipping, hotels, USD widely accepted)
  • Vietnam (hotels, tours, visa fees)
  • Cambodia (USD is functionally the main currency in tourist areas)
  • Bolivia (USD often preferred for larger purchases)
  • Argentina (USD blue dollar exchange gives you 40-50% better rate than official)
  • Cuba (USD essential — local currency restrictions)
  • Lebanon (USD economy due to local currency collapse)
  • Zimbabwe (USD widely used due to local currency issues)
  • Most of Central Africa

In these countries, carrying $200-500 USD in small bills ($1, $5, $10, $20) is functional currency.

The countries where local cash matters

Some countries are cash-heavy for tourists:

  • Japan (lots of small businesses are cash-only)
  • Germany (still surprisingly cash-heavy for restaurants and small purchases)
  • Italy (smaller restaurants and shops)
  • Greece (lots of cash transactions outside tourist hotspots)
  • India (cash for markets, autos, small purchases)
  • Indonesia (cash dominant outside Western hotels)
  • Thailand (cash for street food, songthaews, markets)
  • Vietnam (cash dominant outside tourist hotels)
  • Mexico (cash for street food, markets, tips)
  • Egypt (cash for everything outside hotel chains)

For these countries, get enough local cash for daily purchases.

The countries where cards work fine

You almost don't need cash:

  • USA
  • Canada
  • UK
  • Australia
  • New Zealand
  • Netherlands (one of the most cashless economies on earth)
  • Sweden (basically cashless)
  • Norway (mostly cashless)
  • Denmark (mostly cashless)
  • Finland (mostly cashless)
  • Singapore (cards + Apple Pay everywhere)
  • South Korea (cards and KakaoPay everywhere)

For these countries, $20-50 in local cash is enough for the entire trip.

The smartest way to get cash abroad

1. Use bank ATMs (not standalone airport ATMs or "Euronet" yellow machines). Bank ATMs charge $2-5 per withdrawal at most.

2. Withdraw the maximum allowed each time. This minimizes per-withdrawal fees.

3. Choose to be charged in local currency, never USD. The "dynamic currency conversion" option that asks if you want to be charged in dollars adds 3-7% to your transaction. Always choose local currency.

4. Use a Charles Schwab account or Wise debit card. Both refund foreign ATM fees. Saves $5-10 per withdrawal across a trip.

5. Bring backup USD cash. Even if you don't plan to use it, having $100-300 USD in small bills covers emergencies (lost card, declined card, country without functional ATMs).

Currency exchange basics

Bank ATM > airport exchange > hotel exchange > tourist street exchange.

The worst rates are at:

  1. Airport exchange counters (mark up 15-20%)
  2. Hotel exchange desks (mark up 10-15%)
  3. Bureau de change at tourist locations (mark up 5-10%)

The best rates are:

  1. Bank ATM withdrawals with a card that refunds fees
  2. Direct bank exchange at local banks (if you have time)
  3. Western Union for sending USD then withdrawing in local currency (saves more than you'd expect)

The currency app I actually use

I use XE Currency. Free. Updates in real-time. Works offline.

I don't use the more elaborate apps that try to predict exchange rates or notify me when "the rate is good." Currency prediction is essentially gambling. Just get the cash you need when you need it.

The Argentinian blue dollar (worth knowing)

Argentina has a unique situation. The official exchange rate is one rate. The black-market "blue dollar" exchange is another rate (currently 40-50% better for visitors).

If you're going to Argentina, bring USD cash and exchange at "cuevas" (informal exchange houses, perfectly legal for tourists). Don't use ATMs at the official rate — you'll pay 40-50% more than you need to.

This is a quirky one-off. Most countries don't have this.

The Wise/Revolut play

For long-term travelers, Wise (formerly TransferWise) and Revolut offer:

  • Multi-currency accounts (hold USD, EUR, GBP, JPY, etc. natively)
  • Near-mid-market exchange rates (saves 2-4% vs banks)
  • Free ATM withdrawals up to a monthly limit
  • Free international transfers

For someone traveling regularly, opening a Wise or Revolut account saves significant money over time. It's not necessary for occasional travelers but extremely valuable for digital nomads or frequent international travelers.

The credit card play

The best travel credit cards offer:

  • No foreign transaction fees
  • 2-3x points on international purchases
  • Travel insurance benefits
  • Airport lounge access
  • Sign-up bonuses worth $500-1,000+

Top picks for travelers in 2026: Chase Sapphire Preferred ($95/year), Amex Platinum ($695/year but high benefits), Bilt Rewards (free if you have rent payments).

Using one of these instead of your regular debit card for purchases abroad saves 2-3% on everything plus earns rewards.

The principles that actually matter

1. Bring $200-300 USD in small bills as backup. Always.

2. Use bank ATMs (not airport/hotel exchanges). Always.

3. Choose local currency at the ATM/checkout (not USD billing). Always.

4. Get a card that refunds foreign ATM fees (Schwab, Wise, Capital One 360).

5. Carry small bills of local currency for tips, taxis, markets.

6. Don't carry more local cash than you'll need for 3-4 days.

7. Don't agonize over exchange rates. The difference between "great" and "okay" exchange rates is usually 1-3%. Not worth stressing over.

Most travelers overthink currency. These basics handle 95% of situations.